Newbie in need of help with VOICE command

I'd like to pose a question re: a problem I'm having with my 2004 9-3 Arc sedan and the Voice Command.

I just purchased the car a week ago (I live in the U.S. and it doesn't have On Star) and while "exploring" some of the various controls, I pressed the Voice button located on the steering wheel but now I can't get back to my normal audio functions like the radio and CD. I've tried pressing the MAIN and BACK buttons to the right of the display to no avail. I can get to the Main listing of radio, CD, System, etc. but then the screen will quickly return to display VOICE.

Any suggestions on what I should do? Is there a way to re-set back to the default settings?

Thanks in advnace for any feedback.